Included in the collection of shoes are some that belonged to children that have been lost in school shootings.

The memorial appears a day before scheduled nationwide school and university walkouts. Wednesday marks one month since the Marjory Stoneman Douglas High school shootings. Students, staff and faculty members across the country will walk out for 17 minutes at 10am local time to remember the 17 lives taken during the tragic events.

Awareness is also being raised for the ‘March For Our Lives Campaign’. A protest led by the Douglas High students to demand a change to gun control laws on March 24th.

Survivors of the school shooting in Florida are calling for a march on Washington to demand action on gun control. “People are saying that it’s not time to talk about gun control, and we can respect that. Here’s a time: March 24, in every single city.” https://t.co/ObmdZo67Lapic.twitter.com/qaJfAZy99k